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Mechanism of action of propylthiouracilin hypehyroidism is:

A
Inhibition of organification of iodine
B
Inhibition of oxidation of iodine
C
Inhibition of coupling of two DIT residues
D
All of the above
High-Yield Explanation
(Ref: KDT 6/e p248) Propylthiouracil, carbimazole and methimazole act by inhibiting the enzyme, thyroid peroxidase. It catalyses: Oxidation of iodine Organification Coupling

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